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The series was released as an OVA (Original Video Animation). Katekyo -Kireina Onesan to Himitsu no Lessons- ...
Katekyo -Kireina Onesan to Himitsu no Lessons- is a Japanese manga and anime series that revolves around the life of a high school girl named Hana Umino. The story primarily focuses on her interactions with her "beautiful older sister" (Katekyo) who is actually her tutor, Shinobu Maehara, and the comedic situations that arise from their relationships. If you're interested in "Katekyo -Kireina Onesan to